Gas-burner and valve-actuating mechanism.



A. PAPINI.

GAS BURNER AND VALVE ACTUATING MECHANISM..

APPLICATION FILED MAY I5. 1914.

Patented June 8, 1915 2 SHEETS-SHEET I.

. `Il @A Q u\ K Y vw SLW/humaan A. PAPINI.

GAS BURNER AND VALVE ACTUATING MECHANISM.

APPLICATION FILED MAY15. 1914.

1,142,454. v Patented June 8, 1915.

2 SHEETS-SHEET 2.

.ANTHONY Parmi, or'soU'rH'BnTHLEHEM, PENNSYLVANIA, iassIGNon or FORTI oNE- HUNnnEDTHs 'ro EDMUND LIEDKE, or ALLENTOWN, PENNSYLVANIA.

' Gas-BUnNna-AND VALVE-ACTUATING MoHANIsM.

To all .wko'ne it may concern v -Be it 'known that I, ANTHONY APiirriai, a subject of thfe King of Italy,4 residing at =South Bethlehem, in the county of Northampton e and State of Pennsylvania, have invented certain new and useful Improve'- ments'- in IGras-Burner Vand 'Valve-Actuating Mechanism, vof .which the -following 'is'V a specification.

`This invention relates-to a A'gas burner and valve actuating mechanism. and 'the principal object of the invention -is to provide improved means-for holding the valve openand permitting-the'valvel to be closed iii case the 'gas'becom'es extinguished after being lighted. .l

Another object of the invention is to provide means for releasably holding the valve open and permit the valve to be held open.

the desired amount.

- -Another object of the invention is to so construct the automatic actuating mecha-v nism that the valve will not be operated when the gas is lighted but will be actuated if the gas becomes extinguished.

This invention is illustrated in the accompanying drawings, wherein yFigure .1 is a. longitudinal sectional' view showing the valve open; Fig. 2 is a fra-gmentary view shown principally in top plan and partially in section; Fig. 3 isiafragmentary vertical sectional view ofthe actuating mechanism; Fig. 4 :is a fragmentary l The expanding and contractingvbar`10 is pivotally supported at -one end- 'by the standards 11 and extends across the burner 12 so that when the gas is lighted the heat from the lighted gas will expandthe bar 10 and move the link A13 to rock the pawl 14. This pawl'14 is pivotally mounted between f the supporting plates 1 5 upon bolt v16. The

lower end portion of this ,pawl is formed 19- by means of the bolt 20. The free end into a tooth. 17 which engagesthe teeth of the rack plates 1.8.which are in their turn pivotally connected with the sliding pawl l portions lof the rack plates Y18 are formed into leaf' springs' 21lv which engage the base plate 22 and yieldably-hold the plates vin the normal position shown in Fig'. 1. `The specification of Letters Patent. apiieafitn niea'may 1 5, 191i. semina 838,849.

ratenteagrune s, 1915.

vsprings 23 have their upper ends connected with the pin 24 and have their free ends DsrATEs-PATENT oFFicE. f y

engaging the pin 20 to yieldably hold tlv?l l pawl 19 in its normal position. When this Y pawl 19 is in its normal position the ends of pin 25 will' move up the inclined cam blocks 26:1;0 raise the plates 18. These cam blocks 26 also form a function which will 'be brought out farther on. The valve 27 communicates with the feed pipe 2 8 of burner 121 and is provideduwith a stem 29 which is normally held in a position to close the valve by means ofthe spiral spring- 30.* 1A ratchet'plate 31 is carried by the valve stem 29 beneath the handle 32 and-is engaged by the pawl 19 so that when the valve stem is turned to an open position thel pawl by engaging ,the teeth of the plate 31 will releasably holdthe valve in an open position. An actuating lever 33 is pivotally connected with the valve stem above the plate 31` and is yieldably held in spaced relation to the handle 32 by means of the spring 34. This lever 33 is provided with a.l

- linger 35 which extends between v'the upper and lower plates of the curvedv head- `36 which is carried by the U'shaped lever 37. This lever 37 is pivotally ounted upon the bolt 38 and has its inner arm 39 extending to engage the plates 18 when the outer end portion of thev lever is swung upwardly by means of lever 33. s

vWhen it is desired to lightv the gas the handle 32 and leven are grasped and the lever 33 pressed-toward the handle 3 2. This raises the finger 35 and rocks the lever 37 to move the'arm 39 .downwardly into engagement Vwith the plates 18. When the plates 18 are engaged by the arm'39they are pressed downwardly and as'the pin 25 engages the cam blocks 20 the plates will be -moved to draw pawl 19 inwardly out of engagement with the rack plate 31. The valve stem can then be turnedupon the valve the desiredvamount and the lever 33 then released. When' this lever 33 is released springs A23 ofpawl 19 are `cut at such an .angle thatthe pawl will easily ride over the teeth of plates Y 18 while bar 10" is expanded. if the gas becomes extinguished by any cause the bar 10 will cool and contract thus drawing pawl 13. When the pawl is moved in this direction the tooth 17 cannot move out of engagement with the teeth of plates 18 and therefore plates 18, will move with the pawl and draw pawl 19 to a position to release rack plate 31 and permit the valve stem 29 to be turned to a closed position by spring 30. It is of course obvious that if it is desired to turn the' gas oit by hand the lever 33 may be pressed to rock lever 37 and move plates 18 inwardly. This action will lower the plates out of engagement with pawl 14 and draw pawl 19 inwardly out of engagement with rack plate 31 thus permitting the valve stem to be moved to a closed position. I have therefore provided a device for automatically permitting the valve to be closed in case the gas becomes extinguished, thevalve actuating mechanism being so constructed that it may be manually operated as well as automatically.

What is claimed is 1. ln a device of the character described, a burner, a valve for said burner, a valve stem for said valve having its upper end portion provided with a handle, a rack plate carried by said valve stem, resilient means normally holding said valve stem in a closed position, a lever pivotally connected with said valve stem and having its inner end portion provided with a finger, a pivotally mounted U-shaped lever having one arm provided with a slotted head, said finger eX- tending into the sloto-f said head to permit said U-shaped lever to be moved by said rst mentioned lever, a slidably mounted Vpawl yieldably held in engagement with said rack pivotallymounted pawl having its free end portion engaging said second rack plate, and an expansion and contraction plate extending across said burner and connected with said pivotally mounted pawl.

2. ln a device of the character described, a burner, a valve, a stem for said valve yieldably held in a closed position, a rack carried by said valve stem, a pawl yieldably held in a position to engagelsaid rack and releasably hold said stem in an open position, a slidably and pivotally mounted rack carried by said pawl, manually operated.l means i''orV engaging said second rack to move said pawl to a position to release said rst mentioned rack, a pawl engaging said second rack, and means effected by heat and cold for operating said second pawl to movey said second rack to a position to move said first mentioned pawl to release said rst mentioned rack. v

3. ln a device of the character described a burner, a valve for said burner, a stem for said valve yieldably held in a closed position and. having one end portion provided with a handle, a rack carried by said valve stem, an actuating lever pivotally connected.l

with said valve stem and having one end portion provided with a iinger, a pivotally mounted U-shaped lever having one arm provided with a slotted head to receive said finger and permit said U-shaped lever to be moved by said first mentioned lever, a slidably mounted pawl yieldably held in enpivotally connected with said pawl and constituting a spring element andv positioned for engagement by said U-shaped lever when said U-shaped lever is moved out of its normal position by said fu'st mentioned lever.

ln testimony whereof l aiiX my signature in presence of two witnesses.

Witnesses EDMUND LmDKE, LEON PoRAzzI.

gagement with said rack plate, and a rack isa 

